Cassette type magnetic bubble memory device

Abstract

In a cassette type magnetic bubble memory device comprising: a magnetic bubble memory device mounted to a base plate and having a magnetic bubble memory element, a pair of coils for generation of a rotating field for driving the element, and a pair of permanent magnet plates and yoke plates for applying a bias field to the element; and an electric signal connector section provided on one end of the base plate and adapted to be connected to a loader, an electrically conductive metal frame is provided which surrounds at least the connector section, and a resin sealing medium is provided which seals at least the magnetic bubble memory device continuously to the inner walls of said frame.

What is claimed is: 
     
       1. A cassette type magnetic bubble memory comprising: a magnetic bubble memory device mounted to extend above and below a base plate and having a magnetic bubble memory element, a pair of coils for generation of a rotating field for driving the element, and a pair of permanent magnet plates and yoke plates for applying a bias field to the element; a peripheral circuit for driving the magnetic bubble memory device; and an electric signal connector section provided on one end of the base plate and adapted to be connected to a loader, wherein an electrically conductive metal frame is provided which surrounds at least the connector section, and a resin sealing medium is provided in which at least the magnetic bubble memory device is embedded, said resin sealing medium extending continuously to transmit heat to the peripheral surface of said cassette. 
     
     
       2. A cassette type magnetic bubble memory device according to claim 1 wherein said metal frame is a casing for accomodating said magnetic bubble memory device, said base plate, and said peripheral circuit. 
     
     
       3. A cassette type magnetic bubble memory device according to claim 2 wherein said magnetic bubble memory device and said peripheral circuit are sealed with the resin sealing medium. 
     
     
       4. A cassette type magnetic bubble memory device according to claim 1 wherein said magnetic bubble memory device, said peripheral circuit and said base plate are sealed with a mold of the resin sealing medium, with said connector section exposed, and said metal frame is a belt ring which surrounds said connector section. 
     
     
       5. A cassette type magnetic bubble memory device according to claim 1 wherein said resin sealing medium is epoxy resin. 
     
     
       6. A cassette type magnetic bubble memory device according to claim 1 wherein said resin sealing medium is silicon resin. 
     
     
       7. A cassette type magnetic bubble memory device according to claim 1 or 2 wherein said metal frame is made of aluminum.